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Article: An inquiry into the effect of heating on ascorbic acid.(Report)
- Article from:
- Teaching Science
- Article date:
- March 1, 2009
- Author:
CopyrightCOPYRIGHT 2009 Australian Science Teachers Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Investigations that study the effect of heating on ascorbic acid are commonly performed in schools, but the conclusions obtained are quite variable and controversial. Some results indicate that heating may destroy vitamin C, but others suggest that heating may have no effect. This article reports an attempt to resolve this confusion through a series of experiments designed and performed by a cohort of biology teachers. They aimed to find out why variable results were obtained and how to ensure students obtain meaningful results. The following conclusions were obtained: the amount of ascorbic acid in ascorbic acid solution, Redoxon solution and fresh orange juice, at a pH ...